3 papers
hep-ph2026
A New Origin of the Big Bang from Dark-Sector-Induced Vacuum Decay and Its Gravitational-Wave Signal
Haipeng An, Tingyu Li
We propose a novel scenario for the onset of the thermal Big Bang. In this framework, the inflaton transfers its energy exclusively into a dark sector, leaving the Standard Model (…
hep-ph2026
Gravitational Waves and Primordial Black Holes produced by Dark Meta Stable Vacuum Decay
Haipeng An, Tingyu Li, Chen Yang
Inspired by string theory and cosmological constant problem, it is plausible that the Universe's vacuum structure is characterized by a landscape of metastable vacua. The existence…
hep-ph2024
Dark Photon Dark Matter and Low-Frequency Gravitational Wave Detection with Gaia-like Astrometry
Haipeng An, Tingyu Li, Jing Shu +3
Astrometric surveys offer us a method to search for elusive cosmic signatures, such as ultralight dark photon dark matter and gravitational waves, by observing the deflection to th…